From: Chris Wedgwood <cw@f00f.org>
To: Christoph Hellwig <hch@ns.caldera.de>,
linux-kernel@vger.kernel.org, hpa@zytor.com
Subject: Re: How many pentium-3 processors does SMP support?
Date: Wed, 11 Jul 2001 02:25:09 +1200 [thread overview]
Message-ID: <20010711022509.C31966@weta.f00f.org> (raw)
In-Reply-To: <20010710161943.A7785@caldera.de>
On Tue, Jul 10, 2001 at 04:19:43PM +0200, Christoph Hellwig wrote:
The number of CPUs is currently globally limited to 32 by NR_CPUS in
include/linux/threads.h.
Really?
<pause>
Ah, so it is... yes, making this architecture dependant might be a
good idea. Large PPC and MIPS boxen need to adjust this already. Also,
someone did a starfire port, I think that had 64 processors, not sure.
You can. But you cannot buy 32-processor PII (-Xeon) systems that are
supported by Linux.
What is the limit here? The 8/16 way SE chipsets?
> In anyone from Compaq is reading this, you should send me a 32-way
> Xeon ASAP just to prove they really work :)
It doesn't.
Oh, then they definately need to send me one.
Are these not MP1.4 based? Something different?
--cw
next prev parent reply other threads:[~2001-07-10 14:25 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-10 5:17 How many pentium-3 processors does SMP support? Xinwei Xue
2001-07-10 5:34 ` H. Peter Anvin
2001-07-10 13:51 ` Chris Wedgwood
2001-07-10 14:12 ` Christoph Hellwig
2001-07-10 14:16 ` Chris Wedgwood
2001-07-10 14:19 ` Christoph Hellwig
2001-07-10 14:25 ` Chris Wedgwood [this message]
2001-07-10 14:32 ` Christoph Hellwig
2001-07-10 14:36 ` Chris Wedgwood
2001-07-10 15:26 ` Randy.Dunlap
2001-07-10 15:50 ` Chris Wedgwood
2001-07-10 15:57 ` Christoph Hellwig
2001-07-10 16:29 ` Ralf Baechle
2001-07-10 16:10 ` Jesper Juhl
2001-07-10 14:30 ` Chris Wedgwood
2001-07-10 14:43 ` Jesper Juhl
[not found] <85256A85.007E98E0.00@D51MTA03.pok.ibm.com>
2001-07-10 23:24 ` Martin J. Bligh
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